mjhjmtu

AAA <options>; CCC AAA <options>

AAA, CCC are different commands.

Here we're in an zsh script - for example:

vi script.zsh
<...>
AAA <options>; CCC AAA <options>
<...>

Verbose: Correct me if I'm wrong, CCC AAA <options>'s AAA <options> will be using a subshell and then create a separated process from current shell or may be using current shell and then create a sub-process from the process that running current script.

The problem is that CCC will stay alive after script.zsh is finished. This causes problem that when I try to call something that as result - not the return value (it did create something after done - a newly created object for i.e) of CCC AAA <options>'s AAA <options> INSIDE script.zsh causing not found warning.

That's being said, how to make current script.zsh can see the result of 'AAA <options>'?

If possible target the Z-shell.

EDIT:
Should be:

AAA <options>; CCC AAA <options>

No,

CCC 'AAA <options>'

Starts CCC with one literal AAA <options> argument. That's the same in every shell. You can verify by using the echo command in place of CCC:

$ echo 'AAA <options>'
AAA <options>

If you wanted to call CCC with the output (without the trailing newline characters) of AAA as one single argument, you'd do:

CCC "$(AAA <options>)"

If you wanted to call CCC with as many words as there are in the output of AAA (space, tab, newline, NUL separated), you'd do:

CCC $(AAA <options>)

In any case, CCC won't be started until AAA has returned and the script won't terminate until CCC has returned.

For a script to terminate before a command returns, you'd need it to start that command asynchronously like with:

CCC args &

In any case, that's the same in every shell, it's not zsh specific (except for that splitting on NUL above).